Step-by-step explanation:
(a + b)² = 9
(b + c)² = 25
(a + c)² = 81
Taking the square root:
a + b = ±3
b + c = ±5
a + c = ±9
By adding these three equations together and dividing both sides by 2, we get the value of a + b + c.
Possible combinations for a + b + c such that the sum is greater than or equal to 1 are:
a + b + c = (-3 + 5 + 9)/2 = 11/2
a + b + c = (3 − 5 + 9)/2 = 7/2
a + b + c = (3 + 5 + 9)/2 = 17/2
Answer:
-180v^2
Step-by-step explanation:
multiply and calculate
Step-by-step explanation:
-x+5+6x-7x-14
6x-8x+5-14
-2x-9
Answer:
380
Step-by-step explanation:
1200 + 700 = 1900/5 = 380
